Contrary to what you might have read, there's no one single factor responsible for Earth's blue skies. The skies aren't blue because sunlight has a blue tint; our Sun emits light of many different ...

"Dark Skies: A Practical Guide to Astrotourism" lists 35 sites around the world where people can see the stars, planets, and northern lights without light pollution from cities and towns.

Here's how to find the darkest skies for stargazing, including how to find an area with a low Bortle Number, apps and maps to find dark places, and a guide to dark sky parks and reserves.

But when you combine the blue and violet light of the sky, the greenish tinge of blue and reddish tinge of violet are about the same, and wash out. So what we see is a pale blue sky.

There has been a steady parade of meteor showers and shining planets looking to wow us in the nighttime sky this summer, but there’s one thing standing between us and a perfect show: light ...

Level three classifies rural skies where you can see the dusty Milky Way. Sriram Murali What's observable: the Milky Way Galaxy, and densely packed collections of stars such as M4 , M5 , M15 , and M22 ...

Find out what's up in your night sky during July 2025 and how to see it in this Space.com stargazing guide.